Aperture plate of vacuum chamber for an electron microscope



FIG. 1 is a top perspective view of an aperture plate of vacuum chamberfor an electron microscope showing my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front elevational view thereof, the rear, left and rightside elevational views being mirror images thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a perspective view of the aperture plate of vacuum chamber foran electron microscope in a condition of use.

The broken lines showing of the aperture plate of vacuum chamber for anelectron microscope is for the purpose of illustration portions of thearticle and forms no part of the claimed design.

CLAIM The ornamental design for an aperture plate of vacuum chamber foran electron microscope, as shown and described.